@misc{indiciae5d79b9e0a5d8,
  title = {[Endo-perio problem relationships].},
  author = {P Ollila and M Knuuttila},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2636450/},
  note = {Source identifier: 2636450}
}